CN111308642A

CN111308642A - Camera module

Info

Publication number: CN111308642A
Application number: CN202010257829.5A
Authority: CN
Inventors: 袁钢; 陈海潭
Original assignee: Hunan Kingcome Optoelectronics Co ltd
Current assignee: Hunan Kingcome Optoelectronics Co ltd
Priority date: 2020-04-03
Filing date: 2020-04-03
Publication date: 2020-06-19

Abstract

The invention discloses a camera module which comprises a lens component, a camera component and a VCM component, wherein the lens component and the VCM component are fixed on the camera component, the lens component is embedded in the VCM component, and the lens component and the VCM component are integrally formed. According to the camera module, the lens assembly and the VCM assembly are integrally formed, so that firstly, the space of the VCM assembly is saved, the overall size of the camera module is reduced, and the camera module is further suitable for electronic products with smaller size; secondly, the assembly of a screw tooth locking pair is not needed, no dust is generated, the imaging quality of the product is improved, and the quality of the whole product is further effectively improved; and thirdly, the optical axis between the lens component and the camera component can not generate deviation in the assembling process, so that the assembling process is simple, convenient and easy, high-precision assembling equipment is not needed, and the cost is effectively reduced.

Description

Camera module

Technical Field

The invention relates to the technical field of variable-focus imaging, in particular to a camera module.

Background

With the rapid development of intelligent electronic devices, mobile terminals occupy a very important position in daily life of people, and the requirements of people on the mobile terminals are higher and higher from the technical aspect, the appearance aspect and the structure aspect. The camera is an indispensable part on the mobile terminal. At present, the market of the mobile terminal is directly influenced by the technical content of the function of the camera.

The existing mobile terminal generally has a zoom camera module, which adjusts the position of a lens by using an automatic focusing function of a Voice Coil Motor (VCM) to present a clear image.

In the related technology, the lens and the VCM carrier are connected through threads, the lens and the VCM are bonded and fixed through glue, however, the thread locking pair connected through the threads can generate tooth scraps and dust, the dust is attached to the lens to seriously affect the imaging quality, and the optical axis of the lens is easy to deviate due to the matching connection mode, so that the module assembly precision requirement is very high, the precision requirement on equipment for assembling the module is also high, and the processing difficulty is improved; the assembly process is complex, the number of assembly equipment to be matched is large, and the manufacturing cost is high; and the product size is large, and the miniaturization requirement of terminal customers cannot be met.

Disclosure of Invention

In order to solve the above technical problems, embodiments of the present invention provide a camera module with a small overall size, high imaging quality, and easier assembly.

The technical scheme of the invention is realized as follows:

the utility model provides a camera module, includes camera lens subassembly, camera shooting subassembly and VCM subassembly, the camera lens subassembly with the VCM subassembly is fixed in on the camera shooting subassembly, the camera lens subassembly is inlayed and is located in the VCM subassembly, the camera lens subassembly with VCM subassembly integrated into one piece.

Preferably, the lens assembly comprises a lens barrel and a lens embedded in the lens barrel; the VCM component comprises a VCM carrier, and the lens cone and the VCM carrier are integrally formed.

Preferably, the lens cone includes the barrel that has the chamber of holding and certainly barrel tip court the stopper ring that the center pin direction of barrel is buckled and is extended, the lens is located hold the intracavity just the week side of lens with the inner wall of barrel contacts, the VCM carrier encloses and locates the outer lane of barrel.

Preferably, the VCM subassembly still includes the casing and inlays to be located base, coil, magnet and last shell fragment in the casing, the VCM carrier is fixed in on the base, the coil cover is established the outside of VCM carrier, the magnet is fixed in the coil with between the casing, it locates to go up the shell fragment pressure on the VCM carrier.

Preferably, the base includes a base supported on the camera module and a boss formed by bending and extending the top of the base upward, the VCM carrier is fixed on the base, and the top of the boss is supported on the VCM carrier.

Preferably, a support enclosure extends downwards from the bottom of the VCM carrier, and the support enclosure is fixed on the base and surrounds the outside of the boss.

Preferably, the VCM carrier and the lens barrel are formed by integral injection molding or by 3D printing.

Preferably, the lens barrel and the VCM carrier are made of the same material and are made of engineering plastics.

Preferably, the lens is a plurality of lenses which are arranged at intervals and side by side.

Preferably, the housing is made of a cold-rolled steel sheet.

According to the camera module provided by the embodiment of the invention, the lens component and the VCM component are integrally formed, so that firstly, the space of the VCM component is saved, the whole volume of the camera module is reduced, and the camera module is further suitable for electronic products with smaller volume; secondly, the assembly of a screw tooth locking pair is not needed, no dust is generated, the imaging quality of the product is improved, and the quality of the whole product is further effectively improved; and thirdly, the optical axis between the lens component and the camera component can not generate deviation in the assembling process, so that the assembling process is simple, convenient and easy, high-precision assembling equipment is not needed, and the cost is effectively reduced.

Drawings

Fig. 1 is a schematic structural diagram of a camera module according to the present invention;

fig. 2 is a schematic structural diagram of an optical axis of the camera module shown in fig. 1.

Detailed Description

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

Please refer to fig. 1 and fig. 2 in combination, wherein fig. 1 is a schematic structural diagram of a camera module according to the present invention; fig. 2 is a schematic structural diagram of an optical axis of the camera module shown in fig. 1. This camera module includes camera lens subassembly 1, VCM subassembly 3 and the subassembly 5 of making a video recording, camera lens subassembly 1 with VCM subassembly 3 is fixed in make a video recording on the subassembly 5, camera lens subassembly 1 inlays to be located in the VCM subassembly 3, camera lens subassembly 1 with VCM subassembly 3 integrated into one piece. By integrally forming the lens assembly 1 and the VCM assembly 3, firstly, the space of the VCM assembly 3 is saved, so that the overall volume of the camera module is reduced, and the camera module is further suitable for electronic products with smaller volume; secondly, the assembly of a screw tooth locking pair is not needed, no dust is generated, the imaging quality of the product is improved, and the quality of the whole product is further effectively improved; and thirdly, the optical axis 7 between the lens component 1 and the camera component 5 cannot deviate in the assembling process, so that the assembling process is simple, convenient and easy, high-precision assembling equipment is not needed, and the cost is reduced.

Specifically, in the present embodiment, the lens assembly 1 includes a lens barrel 11 and a lens 13 embedded in the lens barrel 11.

Lens barrel 11 is including having barrel 113 that holds chamber 111 and certainly barrel 113 tip court the stopper ring 115 of the central axis direction bending extension of barrel 113, lens 13 is located hold in the chamber 111 and the week side of lens 13 with the inner wall of barrel 113 contacts, VCM subassembly 3 encloses and locates the outer lane of barrel 113 is used for adjusting the position of lens barrel 11.

Specifically, in this embodiment, the lenses 13 are a plurality of lenses that are sequentially arranged side by side from top to bottom at intervals, and the lenses 13 are arranged along the optical axis 7, preferably, the number of the lenses 13 is four. Of course, in other embodiments, the lens 13 may be increased or decreased more desirably.

VCM subassembly 3 includes casing 31, VCM carrier 33 and inlays and locate base 35, coil 37, magnet 38 and last shell fragment 39 in the casing 31, VCM carrier 33 is fixed in on the base 35, coil 37 cover is established the outside of VCM carrier 33, magnet 38 is fixed in coil 37 with between the casing 31, it compresses to go up shell fragment 39 and locates on the VCM carrier 33.

The lens barrel 11 is integrally formed with the VCM carrier 33. In this way, the lens 13 in the lens barrel 11 is always consistent with the optical axis 7 of the camera assembly 5, so that the assembly precision is improved; the problem that in the prior art, tooth dust is generated due to the fact that a lens and a VCM carrier are locked through threads is solved, the imaging quality of a product is improved, and the size of a camera module is smaller after the assembly size of parts is reduced; and a complex assembly process and high-precision assembly equipment are not needed, so that the cost is reduced, and the production efficiency is improved. Specifically, in the present embodiment, the lens barrel 11 and the VCM carrier 33 are formed by integral injection molding or by 3D printing. Preferably, the lens barrel 11 and the VCM carrier 33 are integrally injection molded, and the injection molding has advantages of fast production speed, high efficiency and low cost.

The base 35 includes a base 351 supported on the image pickup assembly 5 and a boss 353 formed by bending and extending the top of the base 351 upward, the VCM carrier 33 is fixed on the base 351, and the top of the boss 353 is supported on the VCM carrier 33 so that the VCM carrier 33 is more firmly positioned.

The bottom of VCM carrier 33 downwardly extending one supports and encloses fender 333, support enclose keep off 333 be fixed in on the base 351 and surround in boss 353 outside, improved the connectivity between the accessories, so that the structural stability of lens subassembly 1 with VCM subassembly 3 is better, has improved the quality of product.

The lens barrel 11 and the VCM carrier 33 are made of the same material and are made of engineering plastics.

Specifically, in the present embodiment, the housing 31 is made of a cold-rolled steel plate.

The camera module 5 comprises a circuit board 51, an imaging chip 53, a support 55 and an optical filter 57, wherein the imaging chip 53 is arranged on the circuit board 51, the support 55 is fixed on the circuit board 51, the optical filter 57 is fixed on the support 55, the imaging chip 53, the optical filter 57 and the optical axis 7 of the lens 13 are coaxially arranged, and the camera module is high in imaging consistency and quality.

The support 55 includes a support portion 551 and a fixing portion 553 extending from the inner circumference of the support portion 551, the filter 57 is fixed to the fixing portion 553, the support portion 551 and the circuit board 51 enclose to form an accommodating space 59, and the imaging chip 53 is disposed in the accommodating space 59, which is simple in structure and easy to install.

The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. The camera module is characterized by comprising a lens assembly, a camera shooting assembly and a VCM assembly, wherein the lens assembly and the VCM assembly are fixed on the camera shooting assembly, the lens assembly is embedded in the VCM assembly, and the lens assembly and the VCM assembly are integrally formed.

2. The camera module according to claim 1, wherein the lens assembly comprises a lens barrel and a lens embedded in the lens barrel; the VCM component comprises a VCM carrier, and the lens cone and the VCM carrier are integrally formed.

3. The camera module according to claim 2, wherein the lens barrel comprises a barrel body having a receiving cavity and a stop ring extending from an end of the barrel body in a bending manner toward a central axis of the barrel body, the lens is disposed in the receiving cavity, a peripheral side of the lens contacts with an inner wall of the barrel body, and the VCM carrier is disposed around an outer ring of the barrel body.

4. The camera module according to claim 2, wherein the VCM assembly further comprises a housing, and a base, a coil, a magnet and an upper spring piece embedded in the housing, the VCM carrier is fixed on the base, the coil is sleeved outside the VCM carrier, the magnet is fixed between the coil and the housing, and the upper spring piece is pressed on the VCM carrier.

5. The camera module of claim 4, wherein the base comprises a base supported on the camera module and a boss extending from a top of the base to be bent upward, the VCM carrier is fixed on the base, and a top of the boss is supported on the VCM carrier.

6. The camera module of claim 5, wherein a support enclosure extends downward from the bottom of the VCM carrier, the support enclosure being secured to the base and surrounding the exterior of the boss.

7. The camera module according to claim 2, wherein the VCM carrier and the lens barrel are formed by integral injection molding or by 3D printing.

8. The camera module according to claim 2, wherein the lens barrel and the VCM carrier are made of the same material and are made of engineering plastics.

9. The camera module of claim 2, wherein the lens is a plurality of spaced apart, side-by-side lenses.

10. The camera module of claim 4, wherein the housing is made of cold-rolled steel.